这使单细胞生物产生了一种原始形式的视觉能力，使他们能够根据光亮和阴暗进行移动，它也使生物产生了一种控制电势的能力。
This gave them a crude form of vision, allowing them to move in response to light and shade, but also brought into biology a way of controlling electrical potential.
利用缓冲体系的平衡移动，结合不同的电极进行电势法检测，可间接测定样品中各种离子甚至中性分子的浓度。
Using equilibrium shift of buffer solution, indirect determination of a number of ionic even molecular components by FIA in combination with potentiometric detection can be realized.
感应电势型速度检出器(IEVD)以较高的精度直接检测，对测定对象无接触，故对测定对象的移动不产生影响。
The Induction Electromotive force type velocity detector (IEVD) can directly detect velocity with high resolution, without contact on an object.
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